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What is a PN junction diode?
A P type semiconductor is suitably joined to on N type semiconductor under suitable condition by using a special technique to form a junction then the device constructed is a…
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Working principle of PN junction diode
Forward bias of PN junction diode The diode is forward biased. The positive terminal of the battery is connected to the anode of a diode and negative terminal to the…
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Application of PN junction diode
The PN junction diode has the following important applications are given below, PN junction diode is used as a voltage doubler, tripler, quadrupler in voltage multiplier circuits. It is used…
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V-I characteristic of tunnel diode
It immediately conducts the diode when forward biased voltage is applied. The current is increases to its peak point value (Ip). The diode currents starts decreasing till it reaches its…
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What is tunnel diode?
The tunnel diode was first introduced by Dr. Leo Easki in 1958. The Tunnel diode is high conductivity two terminal PN junction diode. It is heavily doped PN junction diode…
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Application of light dependent resistor (LDR)
The Light Dependent Resistor (LDR) used for automatic contrast and brightness control in television receivers. The LDR is used in the infrared astronomy. The LDR is used in optical coding.…
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Construction of PIN diode
The PIN diode is a diode with a wide, it lightly doped intrinsic semiconductor region between a p- type semiconductor and an n-type semiconductor region. This region normally heavily doped…
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Application of thermistor
Some of the important applications of thermistors are given below: Thermistor is used in the control devices actuated by temperature. It is used in automatic temperatures controllers. It is widely…
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Application of LED
Some of the important applications of LEDÂ are given below: It is used in optical switching application. It is used in burglar alarm system. It is used for indicating power…
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Advantages & disadvantage of optical fiber
Advantages of optical fiber : The optical fibers have greater information carrying capacities than metallic conductors. The optical fiber are lighter and smaller.The optical fiber cables are cheaper to transport…